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Date: Sun, 22 May 2011 10:34:55 -0500
From: "William A. Rowe Jr." <wrowe@rowe-clan.net>
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Subject: Apache HTTP Server 2.2.19 Released
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                       Apache HTTP Server 2.2.19 Released

   The Apache Software Foundation and the Apache HTTP Server Project are
   pleased to announce the release of version 2.2.19 of the Apache HTTP
   Server ("Apache").  This version of Apache is principally a bug fix
   release, correcting regressions in the httpd 2.2.18 package; the use
   of that previous 2.2.18 package is discouraged due to these flaws:

     * SECURITY: CVE-2011-1928 (cve.mitre.org)
       A fix in bundled APR 1.4.4 apr_fnmatch() to address CVE-2011-0419
       introduced a new vulnerability.  httpd workers enter a hung state
       (100% cpu utilization) after updating to APR 1.4.4.  Upgrading to
       APR 1.4.5 bundled with the httpd 2.2.19 package, or using APR 1.4.3
       or prior with the 'IgnoreClient' option of the 'IndexOptions'
       directive will circumvent both issues.

     * httpd 2.2.18: The ap_unescape_url_keep2f() function signature was
       inadvertantly changed. This breaks binary compatibility of a number
       of third-party modules.  This httpd-2.2.19 package restores the
       function signature provided by 2.2.17 and prior.

   We consider this release to be the best version of Apache available, and
   encourage users of all prior versions to upgrade.

   Apache HTTP Server 2.2.19 is available for download from:

     http://httpd.apache.org/download.cgi

   Please see the CHANGES_2.2 file, linked from the download page, for a
   full list of changes.  A condensed list, CHANGES_2.2.19 provides the
   complete list of changes since 2.2.18.  A summary of all of the security
   vulnerabilities addressed in this and earlier releases is available:

     http://httpd.apache.org/security/vulnerabilities_22.html

   This release includes the Apache Portable Runtime (APR) version 1.4.5
   and APR Utility Library (APR-util) version 1.3.12, bundled with the tar
   and zip distributions.  The APR libraries libapr and libaprutil (and
   on Win32, libapriconv version 1.2.1) must all be updated to ensure
   binary compatibility and address many known security and platform bugs.

   Apache 2.2 offers numerous enhancements, improvements, and performance
   boosts over the 2.0 codebase.  For an overview of new features
   introduced since 2.0 please see:

     http://httpd.apache.org/docs/2.2/new_features_2_2.html

   This release builds on and extends the Apache 2.0 API.  Modules written
   for Apache 2.0 will need to be recompiled in order to run with Apache
   2.2, and require minimal or no source code changes.

     http://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x/VERSIONING

   When upgrading or installing this version of Apache, please bear in mind
   that if you intend to use Apache with one of the threaded MPMs (other
   than the Prefork MPM), you must ensure that any modules you will be
   using (and the libraries they depend on) are thread-safe.